Leap Motion CEO and co-founder Michael Buckwald compared the new app to Play-Doh.

“It’s kind of insane that a small child with Play-Doh can build something more sophisticated than you or I can with a computer,” Buckwald told The Times. “But that doesn’t have to be true with this app.”

Leap Motion was originally inspired when one of the company's co-founders tried to create a 3-D model but found the process too time consuming using computers. So for the company, Free Form is a return to it roots.

The start-up burst onto the scene last year when it unveiled its motion-sensor device on the Web and began taking pre-orders. This year, it began selling the gadget and partnering with computer-makers to distribute it to more users.

On Wednesday, Leap Motion also announced that since launching in July, it has doubled the number of apps available for its device to 150.

Additionally, the company said it will soon roll out a software update for the Leap Motion Controller that will improve its motion-tracking capabilities.